A5032267791- Meteorological Phenomena and Simulations
- Atmospheric aerosols and clouds
- Climate variability and models
- Atmospheric and Environmental Gas Dynamics
- Plant Water Relations and Carbon Dynamics
- Atmospheric chemistry and aerosols
- Spectroscopy and Laser Applications
- Precipitation Measurement and Analysis
- Laser Design and Applications
- Wind and Air Flow Studies
- Solid State Laser Technologies
- Cryospheric studies and observations
- Geophysics and Gravity Measurements
- Atmospheric Ozone and Climate
- Hydrology and Watershed Management Studies
- Aeolian processes and effects
- Soil Moisture and Remote Sensing
- Advanced Optical Sensing Technologies
- Time Series Analysis and Forecasting
- Tropical and Extratropical Cyclones Research
- Soil and Unsaturated Flow
- Climate change and permafrost
- Fluid Dynamics and Turbulent Flows
- Air Quality Monitoring and Forecasting
- Calibration and Measurement Techniques
University of Hohenheim
2016-2025
Instituto de Física de Cantabria
2022
NORCE Norwegian Research Centre
2022
Karlsruhe Institute of Technology
2022
University of Graz
2022
Aristotle University of Thessaloniki
2022
Cleveland State University
2018
National Institute of Meteorology
2006-2016
Cooperative Institute for Research in Environmental Sciences
2015
University of Tübingen
2013
Abstract. EURO-CORDEX is an international climate downscaling initiative that aims to provide high-resolution scenarios for Europe. Here evaluation of the ERA-Interim-driven regional model (RCM) ensemble presented. The study documents performance individual models in representing basic spatiotemporal patterns European period 1989–2008. Model focuses on near-surface air temperature and precipitation, uses E-OBS data set as observational reference. consists 17 simulations carried out by seven...
Abstract. Despite considerable progress in recent years, output of both global and regional circulation models is still afflicted with biases to a degree that precludes its direct use, especially climate change impact studies. This well known, overcome this problem, bias correction (BC; i.e. the model towards observations post-processing step) has now become standard procedure In paper we argue BC currently often used an invalid way: it added GCM/RCM chain without sufficient proof...
Abstract The European CORDEX (EURO-CORDEX) initiative is a large voluntary effort that seeks to advance regional climate and Earth system science in Europe. As part of the World Climate Research Programme (WCRP) - Coordinated Regional Downscaling Experiment (CORDEX), it shares broader goals providing model evaluation projection framework improving communication with both General Circulation Model (GCM) data user communities. EURO-CORDEX oversees design coordination ongoing ensembles...
Abstract Land–atmosphere (L-A) interactions are a main driver of Earth’s surface water and energy budgets; as such, they modulate near-surface climate, including clouds precipitation, can influence the persistence extremes such drought. Despite their importance, representation L-A in weather climate models remains poorly constrained, involve complex set processes that difficult to observe nature. In addition, complete understanding requires interdisciplinary expertise approaches transcend...
Large‐eddy simulations (LES) with the new ICOsahedral Non‐hydrostatic atmosphere model (ICON) covering Germany are evaluated for four days in spring 2013 using observational data from various sources. Reference established Consortium Small‐scale Modelling (COSMO) numerical weather prediction and further standard LES codes performed used as a reference. This comprehensive evaluation approach covers multiple parameters scales, focusing on boundary‐layer variables, clouds precipitation. The...
Abstract This paper analyzes the ensemble of regional climate model (RCM) projections for Europe completed within EURO‐CORDEX project. Projections are available two greenhouse gas concentration scenarios RCP2.6 (22 members) and RCP8.5 (55 at 0.11° resolution from 11 RCMs driven by eight global models (GCMs). The RCM results compared with driving CMIP5 but also a subset last generation CMIP6 projections. Maximum warming is projected all ensembles in Northern winter, along maximum...
The use of regional climate model (RCM)-based projections for providing information in a research and service contexts is currently expanding very fast. This has been possible thanks to considerable effort developing comprehensive ensembles RCM projections, especially Europe, the EURO-CORDEX community (Jacob et al., 2014, 2020). As end 2019, developed set 55 historical scenario (RCP8.5) using 8 driving global models (GCMs) 11 RCMs. article presents ensemble including its design. We target...
Abstract Within the framework of international field campaign COPS (Convective and Orographically‐induced Precipitation Study), a large suite state‐of‐the‐art meteorological instrumentation was operated, partially combined for first time. This includes networks in situ remote‐sensing systems such as Global Positioning System well synergy multi‐wavelength passive active instruments advanced radar lidar systems. The phase performed from 01 June to 31 August 2007 low‐mountain area southwestern...
Abstract Here we present the first multi-model ensemble of regional climate simulations at kilometer-scale horizontal grid spacing over a decade long period. A total 23 run with $$\sim $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mo>∼</mml:mo> </mml:math> 3 km, driven by ERA-Interim reanalysis, and performed 22 European research groups are analysed. Six different models (RCMs) represented in ensemble. The compared against available high-resolution precipitation...
Abstract Land surface models incorporate a large number of process descriptions, containing multitude parameters. These parameters are typically read from tabulated input files. Some these might be fixed numbers in the computer code though, which hinder model agility during calibration. Here we identified 139 hard‐coded Noah land with multiple options (Noah‐MP). We performed Sobol' global sensitivity analysis Noah‐MP for specific set options, includes 42 out 71 standard and 75 The...
The authors derive expressions for correcting second- through fourth-order moments of measured variables that are contaminated by random uncorrelated noise. These then tested applying them to an artificially produced time series as well measurements from two upward-pointing ground-based lidar systems:a differential absorption measures water vapor density and a high-resolution Doppler vertical wind velocity. Both sets were obtained in convective boundary layer, contain sufficient noise...
The Autonomous Modular Scanner, onboard the Ikhana remotely operated aircraft, captured fires over Basin Fire Complex in Monterey County, California, on 8 July 2008.The image has been overlaid onto terrain data within Google Earth to provide additional information fire managers effects of behavior.The yellow areas depict active areas, with reds and purples showing burned-over areas.
Abstract. For high-resolution measurements of temperature fields in the atmospheric boundary layer and lower free troposphere a scanning eye-safe lidar which deploys rotational Raman technique at 355 nm was developed. To optimize filters receiver for both high nighttime daytime performance, detailed simulation studies have been performed. The is fiber-coupled to sequential setup multicavity interference used under small angles incidence. Examples with system has total...
The Weather Research and Forecast (WRF) model with its land surface NOAH was set up applied as regional climate over Europe. It forced the latest ERA-interim reanalysis data from 1989 to 2008 operated 0.33° 0.11° resolution. This study focuses on verification of monthly seasonal mean precipitation Germany, where a high quality dataset German Service is available. In particular, studied in orographic terrain southwestern Germany dry lowlands northeastern Germany. both regions very important...
Abstract. The Land Use and Climate Across Scales Flagship Pilot Study (LUCAS FPS) is a coordinated community effort to improve the integration of land use change (LUC) in regional climate models (RCMs) quantify biogeophysical effects LUC on local Europe. In first phase LUCAS, nine RCMs are used explore impacts re-/afforestation over Europe: two idealized experiments representing respectively non-forested maximally forested Europe compared order spatial temporal variations sensitivity...
The growing bioeconomy will require a greater supply of biomass in the future for both bioenergy and bio-based products. Today, many cropping systems (BCS) are suboptimal due to either social-ecological threats or technical limitations. In addition, competition land between bioenergy-crop cultivation, food-crop biodiversity conservation is expected increase as result continuous world population growth severe climate change effects. This study investigates how BCS can become more...
Abstract Forecast errors with respect to wind, temperature, moisture, clouds, and precipitation largely correspond the limited capability of current Earth system models capture simulate land–atmosphere feedback. To facilitate its realistic simulation in next-generation models, an improved process understanding related complex interactions is essential. this end, accurate 3D observations key variables (L–A) high vertical temporal resolution from surface free troposphere are indispensable....
Abstract Interactions between the land surface and atmosphere play a fundamental role in weather climate system. Here we present comparison of summertime land‐atmosphere coupling strength found subset ERA‐Interim‐driven European domain Coordinated Regional Climate Downscaling Experiment (EURO‐CORDEX) model ensemble (1989–2008). Most regional models (RCMs) reproduce overall soil moisture interannual variability, spatial patterns, annual cycles exchange fluxes for different zones suggested by...
Abstract. According to Dooge (1986) intermediate-scale catchments are systems of organized complexity, being too and yet small be characterized on a statistical/conceptual basis, but large heterogeneous in deterministic manner. A key requirement for building structurally adequate models precisely this intermediate scale is better understanding how different forms spatial organization affect storage release water energy. Here, we propose that combination the concept hydrological response...
This research aims at assessing land suitability for large-scale agriculture using multiple spatial datasets which include climate conditions, water potential, soil capabilities, topography and management. The study case is in the Emirate of Abu Dhabi, UAE. aridity region requires accounting non-renewable sources like desalination treated sewage effluent (TSE) an accurate realistic assessment irrigated suitability. All were systematically aggregated analytical hierarchical process (AHP) a...